In a large mixing bowl, add the softened cream cheese, sour cream, and mayonnaise. Use an electric hand mixer to beat until combined well and creamy.
1 bar (8 oz) cream cheese, 1 cup sour cream, 1/2 cup mayonnaise
Add in the garlic powder, onion powder, salt, and black pepper. Beat until thoroughly combined with the sour cream mixture.
1 teaspoon garlic powder, ½ teaspoon onion powder, ½ teaspoon kosher salt, ¼ teaspoon black pepper
Add the shredded lettuce, diced tomatoes, crispy crumbled bacon, shredded cheddar cheese, and green onions into the mixing bowl. Use a wooden spoon or rubber spatula to gently mix everything together until well dispersed.
1 cup shredded iceberg lettuce, 1 cup diced tomatoes, 1 cup crispy cooked & crumbled bacon, ½ cup shredded cheddar cheese, ¼ cup thinly sliced green onions
Cover the bowl with plastic wrap, or a lid, and refrigerate for 1-2 hours to allow the flavors to meld together and the dip to chill.
Transfer the BLT dip to a serving dish and place it onto a serving platter. Surround the bowl of dip with a variety of dippers; tortilla chips, baguette slices, potato chips, pita chips (soft pita or crunchy chips), fresh vegetables (bell peppers, carrots, cucumbers), crackers, or pretzels.